I'm researching new sonar units and compatible trolling motors. I'm a Humminbird fan and will stick with them.

I'm looking at Helix 10 Gen4 units, haven't ruled out the new Apex/Solix units.
Trolling Motor question. I am leaning toward the Terrova again. Mine is the original version with Ipilot. I'm leaning toward Ipilot-link on the next one. My options are built-in Down Imaging, or use a bracket to attach the respective transducer to the bottom of the trolling motor. Is the built in transducer worth the extra couple hundred bucks?
https://minnkotamotors.johnsonoutdoo...rrova?id=21246

If I go with the Ulterra I can get both Down and Side imaging built into the Trolling motor. Is it worth the extra money.
https://minnkotamotors.johnsonoutdoo...terra?id=26331